Circadian Rhythms

This clip introduces a firefighter whose job demands conflict with his natural circadian rhythms.

This clip introduces a firefighter whose job demands conflict with his natural circadian rhythms. A psychologist discusses how shift workers may have difficulty getting enough restorative sleep. Circadian rhythms are a built-in component of our daily functioning. While one can resist these to some extent, ignoring these rhythms for a prolonged period leads to disruption of performance and to exhaustion. Employers need to understand human circadian rhythms, for both the safety of their employees and for maximum efficiency.

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      After you've watched the video, click the link below to answer questions about what you've learned.
      Video Assessment Quiz

      Question

      1. In mammals, the circadian clock is located in the:

      Question

      2. The most important factor for the timing of the circadian clock is: